A 21 year-old pregnant woman in her first trimester visits her physician complaining of progressive dyspnea. After physical examination, ECG and echocardiography, she is diagnosed with severe pulmonary hypertension. Her family history supports her diagnosis. Which of the following choices is associated with the best outcome for the mother’s life? A- Termination of pregnancy B- Administration of anti-coagulants C- Administration of prostacyclin D- Administration of ACE inhibitors E- Observation until delivery http://medical-usmle.com/?p=824